On Mon, 23 Aug 2004, Anne Wilson wrote:
> I forgot to say that the reason I would try an SVCD was because I had tried
> playing the mpg back in both xine and totem with the same result. I suppose
I'm wondering if it's a soundcard/driver issue ...
> Meanwhile, I have tried the SVCD test. I just do not understand this.
It's quite easy.
> mplex -f4 coda.m2v coda_soundSVCD.mp2 -o codaSVCD.mpg
Aieee - but did you RECODE THE VIDEO to SVCD specs? If not, and it
does not appear to be the case then:
> INFO: [mplex] Frame width : 720
> INFO: [mplex] Frame height : 576
> INFO: [mplex] Bit rate : 4500000 bits/sec
720x576 is completely wrong for SVCD. SVCD uses a 480x576 frame size
and a max bitrate of 2500 kbits/sec
> INFO: [mplex] rough-guess multiplexed stream data rate : 4827544
> INFO: [mplex] target data-rate specified : 2788800
Way out of specification for SVCD. "mplex -f4" says you're feeding
mplex SVCD compliant input files - and ~4500kbit/sec 720x576 video
simply does not qualify.
You need to scale and encode to a SVCD .m2v file first - then mplex
will do the right thing.
> INFO: [mplex] Video e0: buf= 235520 frame=000000 sector=00000000
> INFO: [mplex] Audio c0: buf= 4096 frame=000000 sector=00000000
> ++ WARN: [mplex] Stream e0: data will arrive too late sent(SCR)=591000
> required(DTS)=591000
> ++ WARN: [mplex] Video e0: buf= 220298 frame=000151 sector=00000504
> ++ WARN: [mplex] Audio c0: buf= 2424 frame=000232 sector=00000074
> ++ WARN: [mplex] Stream e0: data will arrive too late sent(SCR)=1181400
> required(DTS)=1181400
> ......
> **ERROR: [mplex] Too many frame drops -exiting
As expected - that's what happens when a 4500kbit/sec stream is
used for a format with a ~2500kbit/sec maximum ;) Basically it's
the same problem you were having before.
Try again :-)
Cheers,
Steven Schultz
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